![Chapter1](http://s1.studyres.com/store/data/000973769_1-3a3ff7301abe521a84c8263af1052e6c-300x300.png)
Chapter1
... Biodiversity is usually measured in terms of species. Species diversity ≠ species richness. Species diversity ≠ taxonomic diversity. Thus if all the conditions of the species are the same , two species belonging to the same genus have a lower taxonomic diversity than two species belonging to ...
... Biodiversity is usually measured in terms of species. Species diversity ≠ species richness. Species diversity ≠ taxonomic diversity. Thus if all the conditions of the species are the same , two species belonging to the same genus have a lower taxonomic diversity than two species belonging to ...
Threats to Biodiversity
... • “Naïve” species w/ no prior contact w/ humans (dodo bird) • Species closely related to other extinct or near extinct/threatened species (rhinos, oryx, whales) ...
... • “Naïve” species w/ no prior contact w/ humans (dodo bird) • Species closely related to other extinct or near extinct/threatened species (rhinos, oryx, whales) ...
AP Environmental Science notes
... hosts (example – deer ticks) Cryptosporidium and Giardia are parasites found in water -even in the wilderness!! slide show of parasites that take over their host bodies ...
... hosts (example – deer ticks) Cryptosporidium and Giardia are parasites found in water -even in the wilderness!! slide show of parasites that take over their host bodies ...
3-6 ch7
... • What is the most limiting factor for plant growth in a rainforest? • What would be the second most limiting factor for plant growth? • Tropical Rain Forests • Most productive biome • Tree tops form a continuous layer: canopy, competition for light • Epiphytes: grow on branches of other trees • Tro ...
... • What is the most limiting factor for plant growth in a rainforest? • What would be the second most limiting factor for plant growth? • Tropical Rain Forests • Most productive biome • Tree tops form a continuous layer: canopy, competition for light • Epiphytes: grow on branches of other trees • Tro ...
Canaries in a Coal Mine
... • Que Sera Sera—whatever will be, will be—this is criminal negligence—a Martian will have to say that our “leaders” are psychopaths ...
... • Que Sera Sera—whatever will be, will be—this is criminal negligence—a Martian will have to say that our “leaders” are psychopaths ...
Ecology
... 1) Photic layer = receives light 2) Aphotic layer = does not receive light Oceans: 3/4 of Earth's surface, most O2 comes from algae Plankton: in pelagic zone Phytoplankton = plants, main producers Zooplankton = tiny animals Freshwater Communities: Lakes and ponds: layered like oceans, smaller scale ...
... 1) Photic layer = receives light 2) Aphotic layer = does not receive light Oceans: 3/4 of Earth's surface, most O2 comes from algae Plankton: in pelagic zone Phytoplankton = plants, main producers Zooplankton = tiny animals Freshwater Communities: Lakes and ponds: layered like oceans, smaller scale ...
Biomes and Biodiversity
... • Land surface is saturated or covered with water at least part of the year • Water usually shallow enough to allow full sunlight penetration • Trap and filter water - “nature’s kidney’s” • Provide flood control Human disturbance • By some estimates, humans use about 40% of net terrestrial primary p ...
... • Land surface is saturated or covered with water at least part of the year • Water usually shallow enough to allow full sunlight penetration • Trap and filter water - “nature’s kidney’s” • Provide flood control Human disturbance • By some estimates, humans use about 40% of net terrestrial primary p ...
Human Influences on Ecosystems
... What are some problems with loss of biodiversity and extinction? What is a fundamental challenge in trying to prevent extinction? Know 4 types of resource exploitation in terrestrial ecosystems What are some limitations of recycling mineral materials? Why is tropical deforestation a big problem? Wha ...
... What are some problems with loss of biodiversity and extinction? What is a fundamental challenge in trying to prevent extinction? Know 4 types of resource exploitation in terrestrial ecosystems What are some limitations of recycling mineral materials? Why is tropical deforestation a big problem? Wha ...
Human Ecology
... – Food supply, solar energy, wind/air, water, soil, living things (trees), geothermal energy, nuclear energy ...
... – Food supply, solar energy, wind/air, water, soil, living things (trees), geothermal energy, nuclear energy ...
Investigating the role of ecological interactions in shaping species
... Main supervisor: Doctor Orly Razgour (University of Bristol) ...
... Main supervisor: Doctor Orly Razgour (University of Bristol) ...
biological diversity
... and living (biotic) parts of the ecosystems they share. As these abiotic and biotic factors vary from one ecosystem to another, ecosystem diversity refers to these differences. ...
... and living (biotic) parts of the ecosystems they share. As these abiotic and biotic factors vary from one ecosystem to another, ecosystem diversity refers to these differences. ...
Ecosystem Stability
... a. HABITAT FRAGMENTATION • When species are living in a small area of suitable habitat surrounded by areas of unsuitable ...
... a. HABITAT FRAGMENTATION • When species are living in a small area of suitable habitat surrounded by areas of unsuitable ...
Biodiversity
... If we want to work out the biodiversity of an area then we need to find out how many of each type of organism there are present This can be a bit of a challenge if you bear in mind that there might be hundreds of thousands of mites per square metre, not to mention the millions of bacteria ...
... If we want to work out the biodiversity of an area then we need to find out how many of each type of organism there are present This can be a bit of a challenge if you bear in mind that there might be hundreds of thousands of mites per square metre, not to mention the millions of bacteria ...
Natural Capital Degradation
... Global warming: sea levels will rise and aquatic biodiversity is threatened • Coral reefs • Swamp some low-lying islands • Drown many highly productive coastal wetlands • New Orleans, Louisiana, and New York City ...
... Global warming: sea levels will rise and aquatic biodiversity is threatened • Coral reefs • Swamp some low-lying islands • Drown many highly productive coastal wetlands • New Orleans, Louisiana, and New York City ...
Cause and Effect Relationships of the Ecological Systems
... Potential energy is lost as you move up an energy pyramid. This is like the second law of thermodynamics, some energy is transferred to surroundings as heat as no process can be 100% effective An average of 90% energy loss as one moves to the next higher trophic level ...
... Potential energy is lost as you move up an energy pyramid. This is like the second law of thermodynamics, some energy is transferred to surroundings as heat as no process can be 100% effective An average of 90% energy loss as one moves to the next higher trophic level ...
Biodiversity
... Are living in another mass Extinction that would leave 25% of all species extinct By the year 2100. If this is true, it will be the First caused by an organism… Humans! ...
... Are living in another mass Extinction that would leave 25% of all species extinct By the year 2100. If this is true, it will be the First caused by an organism… Humans! ...
Chapter 1 Notes - Sardis Secondary
... Biotic Interactions in Ecosystems Community: all organisms that interact within an ecosystem. Population: all members of a certain species within an ecosystem. Species: all organisms within an ecosystem that have the same structure & who can reproduce with each other (and produce fertile offspring) ...
... Biotic Interactions in Ecosystems Community: all organisms that interact within an ecosystem. Population: all members of a certain species within an ecosystem. Species: all organisms within an ecosystem that have the same structure & who can reproduce with each other (and produce fertile offspring) ...
Conversation on Biodiversity - GRCC Instructional Home Page
... Then define for them biodiversity, conservation biology, and any other terms you feel necessary. Explain why scientists find biodiversity to be important, and give an example of biodiversity. Read them the quote from E.O. Wilson. It may help to show them your concept map on biodiversity. THE QUOTE E ...
... Then define for them biodiversity, conservation biology, and any other terms you feel necessary. Explain why scientists find biodiversity to be important, and give an example of biodiversity. Read them the quote from E.O. Wilson. It may help to show them your concept map on biodiversity. THE QUOTE E ...
Biodiversity - cloudfront.net
... How many species of plants and animals do you think there are in the world? Do you agree or disagree with the statement below and why? “If humans don’t have any use for a plant or an animal, then it might as well not exist in the first place.” ...
... How many species of plants and animals do you think there are in the world? Do you agree or disagree with the statement below and why? “If humans don’t have any use for a plant or an animal, then it might as well not exist in the first place.” ...
Biodiversity
... Biodiversity is a crucial natural resource. Threatened species provide medicinal, agricultural, ecological and economic benefits to humans: • About 40% of all prescriptions written today are composed from the natural compounds from different plant and animal species. • Humans depend on about 20 spec ...
... Biodiversity is a crucial natural resource. Threatened species provide medicinal, agricultural, ecological and economic benefits to humans: • About 40% of all prescriptions written today are composed from the natural compounds from different plant and animal species. • Humans depend on about 20 spec ...
biodiversity conservation
... resources and associated knowledge – Regulation of the commercial utilization of biodiversity by any Indian or foreign national / Institution / Corporate bodies by granting approval or otherwise and, – Advice the government on all matters related to biodiversity conservation and use. ...
... resources and associated knowledge – Regulation of the commercial utilization of biodiversity by any Indian or foreign national / Institution / Corporate bodies by granting approval or otherwise and, – Advice the government on all matters related to biodiversity conservation and use. ...
File - Brandon`s Amazing APES
... Extinction Rate: Expressed as a percentage or number of species that go extinct within a certain time period Mass Extinction: Extinction of many species in a relatively short amount of time (we have had 5) ...
... Extinction Rate: Expressed as a percentage or number of species that go extinct within a certain time period Mass Extinction: Extinction of many species in a relatively short amount of time (we have had 5) ...
Chapter 5 Evolution and Biodiversity Review
... effects the ozone layer and how that could influence the species diversity of the two tide pool environments (pages 52-55) . ...
... effects the ozone layer and how that could influence the species diversity of the two tide pool environments (pages 52-55) . ...
File
... with their physical environment (soil, water, climate, and so on). An ecosystem, or ecological system, consists of a community and all the physical aspects of its habitat, such as the soil, water, and weather. ...
... with their physical environment (soil, water, climate, and so on). An ecosystem, or ecological system, consists of a community and all the physical aspects of its habitat, such as the soil, water, and weather. ...
Guided Notes Ch 4, 5, 6
... produced by forest fires. – Similar to primary succession in later stages (after soil has formed). – __________________________________________ occurs such as fire, hurricane, human activities and community is destroyed. – Ecosystem interacts to restore _______________________ conditions. Earth as a ...
... produced by forest fires. – Similar to primary succession in later stages (after soil has formed). – __________________________________________ occurs such as fire, hurricane, human activities and community is destroyed. – Ecosystem interacts to restore _______________________ conditions. Earth as a ...
Biodiversity
Global Biodiversity is the variety of different types of life found on Earth and the variations within species. It is a measure of the variety of organisms present in different ecosystems. This can refer to genetic variation, ecosystem variation, or species variation (number of species) within an area, biome, or planet. Terrestrial biodiversity tends to be highest near the equator, which seems to be the result of the warm climate and high primary productivity. Biodiversity is not distributed evenly on Earth. It is the richest in the tropics. Marine biodiversity tends to be highest along coasts in the Western Pacific, where sea surface temperature is highest and in the mid-latitudinal band in all oceans. There are latitudinal gradients in species diversity. Biodiversity generally tends to cluster in hotspots, and has been increasing through time but will be likely to slow in the future.The number and variety of plants, animals and other organisms that exist is known as biodiversity. It is an essential component of nature and it ensures the survival of human species by providing food, fuel, shelter, medicines and other resources to mankind. The richness of biodiversity depends on the climatic conditions and area of the region. All species of plants taken together are known as flora and about 70,000 species of plants are known till date. All species of animals taken together are known as fauna which includes birds, mammals, fish, reptiles, insects, crustaceans, molluscs, etc.Rapid environmental changes typically cause mass extinctions. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described. The total amount of related DNA base pairs on Earth is estimated at 5.0 x 1037, and weighs 50 billion tonnes. In comparison, the total mass of the biosphere has been estimated to be as much as 4 TtC (trillion tons of carbon).The age of the Earth is about 4.54 billion years old. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era after a geological crust started to solidify following the earlier molten Hadean Eon. There are microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. Other early physical evidence of a biogenic substance is graphite in 3.7 billion-year-old metasedimentary rocks discovered in Western Greenland. Since life began on Earth, five major mass extinctions and several minor events have led to large and sudden drops in biodiversity. The Phanerozoic eon (the last 540 million years) marked a rapid growth in biodiversity via the Cambrian explosion—a period during which the majority of multicellular phyla first appeared. The next 400 million years included repeated, massive biodiversity losses classified as mass extinction events. In the Carboniferous, rainforest collapse led to a great loss of plant and animal life. The Permian–Triassic extinction event, 251 million years ago, was the worst; vertebrate recovery took 30 million years. The most recent, the Cretaceous–Paleogene extinction event, occurred 65 million years ago and has often attracted more attention than others because it resulted in the extinction of the dinosaurs.The period since the emergence of humans has displayed an ongoing biodiversity reduction and an accompanying loss of genetic diversity. Named the Holocene extinction, the reduction is caused primarily by human impacts, particularly habitat destruction. Conversely, biodiversity impacts human health in a number of ways, both positively and negatively.The United Nations designated 2011–2020 as the United Nations Decade on Biodiversity.